Specifications
| Standby power | 10 kW |
|---|---|
| Voltage options | 250 V |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 6000 hr | find | ||
| Fuel filter | — | 6000 hr | find | ||
| Oil filter | — | 6000 hr | find | ||
| Belt | — | 6000 hr | find | ||
| Coolant | — | 12500 hr | |||
| Coolant filter | — | find | |||
| Oil | 4.0 quarts | — | 6000 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Cummins/Onan 10HQ-150R?
The Cummins/Onan 10HQ-150R is rated 10 kW standby.
What engine does the Cummins/Onan 10HQ-150R use?
The Cummins/Onan 10HQ-150R is powered by the Continental F-162 engine.
Troubleshooting
24Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine lacks power. | Tighten cylinder head and spark plugs.<br>If still not corrected, grind the valves,<br>Replace piston rings, if necessary. | Check the fuel system. Clean, adjust,<br>or replace parts necessary. |
| Engine misfires at light load. | Carburetor idle adjustment Adjust, clean if needed,<br>set wrong or clogged.<br>Spark plug gaps too narrow. Adjust to correct gap.<br>Intake air leak.<br>Faulty ignition.<br>Tighten or replace gaskets,<br>Clean, adjust, or replace breaker points, plugs, condenser, etc., or retime ignition.<br>Uneven compression. Tighten cylinder head and spark plugs.<br>If still not corrected, grind valves,<br>Replace piston rings, if necessary. | |
| Engine misfires at heavy load. | Spark plugs defective. Replace.<br>Clean, adjust, or replace breaker points, plugs, condenser, etc., or retime ignition.<br>Clogged carburetor. Clean jets.<br>Clogged fuel screen. Clean.<br>Replace.<br>Faulty ignition.<br>Defective spark plug cables. | |
| Engine misfires at all loads. | Fouled spark plug. Clean and adjust.<br>Wrong or effective spark plug. Replace.<br>Ticking valves. Clean stems and guides.<br>Broken valve spring. Replace.<br>Defective ignition wires. Replace.<br>Effective or improperly adjusted Adjust or replace breaker points. | |
| Low oil pressure. | Oil too light. Drain, refill with proper oil.<br>Dil badly diluted. Drain, refill with proper oil.<br>Oil too low. Add oil.<br>Dil relief valve not seating. Remove and clean, or replace.<br>Badly worn bearings. Replace.<br>Sludge on oil screen. Remove and clean.<br>Badly worn oil pump. Replace.<br>Defective oil pressure gauge. Replace. | |
| High oil pressure. | Oil too heavy. Drain, refill with proper oil.<br>Slogged oil passage. Clean all lines and passages.<br>Oil relief valve stuck. Remove and clean.<br>Defective oil pressure gauge. Replace. | |
| Plant starts but does not continue to run. | Start button released too soon. Hold in contact longer.<br>Defective charging generator. Repair.<br>Defective panel equipment. See Controls. | |
| Engine backfires at carburetor. | Lean fuel mixture. Clean carburetor.<br>Slogged fuel screen. Clean screen.<br>Intake air leak. Replace flange gaskets, tighten carb.<br>Poor fuel. Refill with good, fresh fuel. | |
| Excessive oil consumption, light blue smoky exhaust. | Worn piston rings. Install new piston rings.<br>Oil leaks from engine or con-nections. This does not cause smoky exhaust.<br>Oil too light or diluted. Drain, refill with correct oil,<br>Too large bearing clearance. Replace bearings.<br>Oil pressure too high. Refer to symptoms of high oil pressure for remedies. | |
| Black, smoky exhaust, excessive fuel consumption, fouling of spark plugs with black soot, possible lack of power under heavy load. | Fuel mixture too rich. Adjust choke. Install needed carburetor parts, adjust float level.<br>Choke not open. See that choke opens properly.<br>Dirty air cleaner. Clean, refill to proper level. | |
| Light pounding knock. | Loose connecting rod bearing. Replace,<br>Low oil supply. Add oil,<br>Low oil pressure. Refer to symptom of low oil pressure for remedies.<br>Oil badly diluted. Change oil. | |
| Engine stops unexpectedly. | Fuel tank empty. Refill.<br>Fuel pump failure. Repair or replace.<br>High water temperature. See symptoms for engine overheating.<br>Defective ignition. Check the ignition system. Repair or replace parts necessary. | |
| Dull metallic thud, if not bad, may disappear after few minutes operation, if bad, increases with load. | Loose crankshaft. Replace bearings, unless one of the next three remedies permanently corrects the trouble.<br>Sharp metallic thud, especially when cold engine first started. Add oil,<br>Refer to symptom of low pressure for remedies.<br>Oil badly diluted. Change oil. | |
| Pinging sound when engine is rapidly accelerated or heavily loaded. | Low oil supply.<br>Low oil pressure.<br>Carbon in cylinders. Remove carbon.<br>Spark too early. Retime ignition.<br>Wrong spark plugs. Install correct plugs.<br>Spark plugs burned or carboned. Install new plugs.<br>Valves hot. Adjust tappet clearance<br>Fuel stale or low octane. Use good fresh fuel.<br>Lean fuel mixture. | |
| Jil too heavy. | Drain, refill with proper oil. | |
| 'logged oil passage. | Clean all lines and passages. | |
| Jil relief valve stuck. | Remove and clean. | |
| Plant starts but does not continue to run | START button released too soon. | Hold in contact longer |
| Engine backfires at carburetor | Lean fuel mixture. | Clean carburetor. |
| Excessive oil consumption, light blue smoky exhaust | Worn piston rings. | Install new piston rings. |
| Engine misfires | Faulty ignition. | Clean, adjust, or replace breaker points, plugs, condenser, etc., or retimes ignition. |
| Unit operated at light or no load for long periods | No remedy needed. | |
| Too much oil | Drain excess oil. | |
| Light pounding knock | Loose connecting rod bearing. | Replace. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
53| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 10-L07 | Plug, Spark | 4 | Spark plug | PartsGeek |
| 11581 | Gasket, Cover Screw - Oil Filter | 1 | Gasket | PartsGeek |
| 11582 | Gasket, Cover - Oil Filter | 1 | Gasket | PartsGeek |
| 140B303 | Cleaner, Air | 1 | Air filter | PartsGeek |
| 149-287 | Filter, Fuel | 1 | Fuel filter | PartsGeek |
| 149B321 | Pump, Fuel Primer | 1 | Pump | PartsGeek |
| 149K508 | Kit, Fuel Pump Repair Parts | 1 | Fuel pump | PartsGeek |
| 149P175 | Gasket, Fuel Pump Mtg. | 1 | Gasket | PartsGeek |
| 149P457 | Pump, Fuel | 1 | Pump | PartsGeek |
| 155A10 | Gasket, Carburetor Mounting | 1 | Gasket | PartsGeek |
| 1595654 | Element, Fuel Filter Cleaner | 1 | Fuel filter | PartsGeek |
| 161-62 | Seal, Magnetic Rotor Shaft | 1 | Seal | PartsGeek |
| 17EL-204 | Gasket, Oil Pump Strainer Frame | 1 | Gasket | PartsGeek |
| 185-638 | Gasket Exhaust and Intake Manifold | 1 | Gasket | PartsGeek |
| 185-749 | Gasket Cylinder Water Outlet | 1 | Gasket | PartsGeek |
| 193B43 | Gauge, Oil Pressure | 1 | Sensor | PartsGeek |
| 193B46 | Gauge, Water Temperature | 1 | Sensor | PartsGeek |
| 1A-400 | Gasket Set, Carburetor | 1 | Gasket | PartsGeek |
| 1A-511 | Gasket Set, Fuel Filter | 1 | Gasket | PartsGeek |
| 309-39 | Thermostat Coolant Water | 1 | Thermostat | PartsGeek |
| 503-232 | Hose, Radiator Drain | 1 | Hose | PartsGeek |
| 503A228 | Hose, Radiator Upper | 1 | Hose | PartsGeek |
| 503A229 | Hose, Radiator Lower | 1 | Hose | PartsGeek |
| 503A233 | Hose, Breather | 1 | Hose | PartsGeek |
| 511-36 | Belt, Fan | 1 | Belt | PartsGeek |
| 861A | Hose, Air Cleaner | 1 | Hose | PartsGeek |
| C21P2 | Cartridge, Replacement - Oil Filter | 1 | Oil filter | PartsGeek |
| C400E-218 | Thermostat, Heat Control | 1 | Thermostat | PartsGeek |
| C400L-231 | Gasket, Oil Pump Cover | 1 | Gasket | PartsGeek |
| C600E-202 | Gasket, Exhaust Pipe Packing | 1 | Gasket | PartsGeek |
| D600B-214 | Cork, Filler Block to Oil Pan | 2 | Seal | PartsGeek |
| D600H-205 | Pump Assembly, Oil | 1 | Pump | PartsGeek |
| F124A-201 | Gasket, Valve Chamber Cover | 1 | Gasket | PartsGeek |
| F21-P2 | Filter, Oil - Complete With Cartridge | 1 | Oil filter | PartsGeek |
| F400B-252 | Seal, Oil - Rear Bearing Filler Block | 2 | Seal | PartsGeek |
| F400C-208 | Felt, Timing Hole Cover | 1 | Seal | PartsGeek |
| F400E-205 | Gasket, Exhaust to Intake Manifold | 1 | Gasket | PartsGeek |
| F400E-303 | Gasket, Exhaust and Intake Manifold to Cylinder | 1 | Gasket | PartsGeek |
| F400K-340 | Gasket, Water Pump to Cylinder Block | 1 | Gasket | PartsGeek |
| F400K-391 | Gasket, Water Pump Cover | 1 | Gasket | PartsGeek |
| F400K-393 | Impeller, Water Pump | 1 | Impeller | PartsGeek |
| F400K-39415 | Pump Assembly, Water - Complete | 1 | Pump | PartsGeek |
| N62K-211 | Seal, Water Pump | 1 | Seal | PartsGeek |
| X-365 | Gasket, Oil Pressure Relief Valve Plug | 1 | Gasket | PartsGeek |
| 100P124 | Engine Replacement Assembly | 1 | Service part / kit | PartsGeek |
| 10S-150/15A | Switchboard | Service part / kit | PartsGeek | |
| 10S-150/16A | Switchboard | Service part / kit | PartsGeek | |
| 10S-150/17A | Switchboard | Service part / kit | PartsGeek | |
| 15S-150/15A | Switchboard | Service part / kit | PartsGeek | |
| 15S-150/16A | Switchboard | Service part / kit | PartsGeek | |
| 15S-150/17A | Switchboard | Service part / kit | PartsGeek | |
| 185-507 | Shaft Assembly Magneto Drive | 1 | Service part / kit | PartsGeek |
| 321-6 | Fuse, 20 Amp | 1 | Service part / kit | PartsGeek dieselfreak $6.00 |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | |||
| Standby |
Available documents
Service manual — 921-0006 Onan HQ series Genset Instruction Manual (1960) (Cummins/Onan)